this is what the CRL statesE-11 BlasterFor 501st approval:Based on a real or replica Sterling sub-machine gun, scratch-built, or a modified commercial toy Stormtrooper blaster.

For level two certification (if applicable):Folding stock (does not need to function).A real or replica ammo counter - based off of a Hengstler counter - shall be present.D-ring mounted on the rear.Sterling based blasters have the correct M-38 or M-19 style scope.Two power cylinders on the magazine housing.Scratch-built or cast blasters shall have a total of 6 T-tracks on blaster (leaving the lowest row on the magazine housing side uncovered).If using the Hasbro E11 toy blaster, it is modified to have the correct number of T-tracks (6 total), with a lower row of open vent holes on the magazine housing side.This is accomplished by covering the pre-existing rows of holes with T-tracks, then grinding off the lower integrated T-track on the magazine housing side, and drilling a new row of holes in its place.No ESB/ROTJ greeblies are allowed on the blaster.For level three certification (if applicable):Hasbro blasters are not allowed, even conversions.

what i do know is when you compare the size of the rubies to the Hyperfirm or the actual resin casts it is a bit smaller.

The fact that none of the issues on the rubies are specifically addressed is why I was curious about it. I know the power cylinders are the only thing mentioned that are not present by the CRL, but the CRL's doesn't specify what constitutes present. Does this makes sense?